ASME程序--压力试验程序【中英文】

Pressure Testing Procedure

压力试验程序

Prepared by Date _____________

编制：日期：

Approved by _________________ Date __________ _

批准：日期：

********************** Subsidiary Equipment Co., Ltd.

**********************

1. Scope 范围

1.1 This procedure describes the control of operation and inspection for pressure testing of boiler

and pressure vessel which are constructed in according to ASME Section I ,B31.1and VIII Div.1.

本程序为根据ASME第Ⅰ卷,B31.1和第Ⅷ卷第１分册制造的锅炉/压力容器的压力试验的操作规定了控制程序。

1.2 This procedure is supplementary requirement to the QC Manual.

本程序是质量手册的补充要求。

2 Preparation before Pressure Testing

在压力试验前的准备

2.1 Hydrostatic pressure test shall be carried out after all fabrication works has been finished.

QC Engineer shall verify that all required fabrication, examination, inspection and test activities have been completed, especially those inspection points established by AI have been properly closed. All Nonconformity Reports have been completely closed if existed.

在所有制造工作完成之后，应实施水压试验。质量经理应检验所有要求的制造、检验、检查和测试行为都已经被完成，特别是那些已经由AI建立并已经适当地关闭的检验点。

2.2Before hydrostatic pressure testing, Examiner shall carry out visual inspections both internally

and externally with Examiner on the Code items. If such inspection is requested by AI, AI’s visual inspection, dimensional check shall be carried out prior to the pressure test and the result shall be acceptable.

在水压试验之前，检验员应对规范产品执行目测检验。如果AI要求检验，AI的目测建议和尺寸建议应在压力测试和结果被接受之前进行。

2.3The being pressure tested Code item shall be clean and free from any oil, grease, paint and

other dirties. The outside surface of the Code item shall be kept dry and clean during the period of pressure test. The testing equipment shall be examined to that it is tight and that all low-pressure filling lines and other appurtenances that shall not be subjected to the test pressure have been disconnected.

2.4应清洗被检测的承压部件中的原理油、油脂、油漆和其它脏物。在测试中，承压部件的

外表面应保持干燥和整洁。应检验测试设备确保它是不漏水的，所有低压填充线和其它附属物在测试中不应被连接。

3 Hydrostatic Pressure Test 水压试验

3.1 Hydrostatic Pressure Test for Pressure Vessel压力容器的水压试验

a) For internal pressurized vessels, hydrostatic pressure tests shall be applied by raising the

pressure gradually to the maximum allowable working pressure (MAWP) as shown on the manufacturer’s data report to be stamped on the pressure vessel and hold for a few minutes in order to verify whether there is leakage. Then the pressure shall be raised to the testing pressure which at every point in the vessel is at least equal to 1.3 times the MAWP to be marked on the vessel multiplied by the lowest ratio of the stress value S at the test temperature on the vessel to the stress value S at the design temperature. All loading that may exist during pressure test shall be considered. The testing pressure shall be indicated on the drawings.

水压试验应应用内部承压，通过渐渐地升压直至到最大需用工作压力（MAWP），生产制造商用钢印标识在压力容器上的数据报告有标明了最大需用工作压力。保持该压力几分钟以确认是否有漏水。然后，压力应升至测试压力，容器的每一点上都最少受到最大工作压力的1.3倍。所有可能在压力测试中存在的压力应被考虑。测试压力应在图纸上说明。

b) Metal temperature during hydrostatic pressure test is recommended to maintain at least

30︒F(17 ︒C) above the minimum design metal temperature (MDMT) but need not exceed 120︒F (48︒C),to minimize the risk of brittle fracture for pressure vessel.

在静水压力试验中，在最小设计金属温度(MDMT)以上，金属温度应维持在30︒F(17 ︒C)为了减少易碎破裂的危险，但是不应超过120︒F (48︒C)。

3.2Hydrostatic Pressure Test for Boiler锅炉的水压试验

a)The hydrostatic testing of the completed boiler unit shall be subjected to pressure tests using

water at not less than ambient temperature, but in no case less than 70 ºF ( 20 ºC ).The hydrostatic tests shall be applied by raising the pressure gradually to not less than 1.5 times the MAWP as shown on the data report to be stamped on the boiler. Then test pressure may be